From 4f149daaccb06676dd34cf9eb8e1ee425418b854 Mon Sep 17 00:00:00 2001
From: Elijah Newren <newren@gmail.com>
Date: Thu, 1 Nov 2018 10:29:13 -0700
Subject: [PATCH] filter-repo: aid debugging with a string representation of
 several classes

Signed-off-by: Elijah Newren <newren@gmail.com>
---
 git-filter-repo | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/git-filter-repo b/git-filter-repo
index d50d027..6c523de 100755
--- a/git-filter-repo
+++ b/git-filter-repo
@@ -16,6 +16,7 @@ import collections
 import fnmatch
 import os
 import re
+import StringIO
 import subprocess
 import sys
 import time
@@ -237,6 +238,18 @@ class _GitElement(object):
     """
     raise SystemExit("Unimplemented function: %s.dump()" % type(self).__name__)
 
+  def __str__(self):
+    """
+    Convert GitElement to string; used for debugging
+    """
+    old_dumped = self.dumped
+    writeme = StringIO.StringIO()
+    self.dump(writeme)
+    output_lines = writeme.getvalue().splitlines()
+    writeme.close()
+    self.dumped = old_dumped
+    return "{}:\n  {}".format(type(self).__name__, "\n  ".join(output_lines))
+
   def skip(self, new_id=None):
     """
     Ensures this element will not be written to output